87 chaparral model 187 Timing and Points Setting

[Virtual_Digit]

High guys, I am having a problem cross referencing my Engine serial number to determine what engine is in this boat. The Motor Serial Number is B555759. Based on what I have found this appears to be a 224 from 1982 circa?
Anyway , I need to find out what the point gap, Dwell, and Timing should be for this motor. Currently the motor doesn't run very wall at all, and I believe that based on the condition of the points, that a full tune-up, with Cap, Rotor, points, condenser, and Coil is in order, Can you guys point me in the right direction?

 

[Don S]

Re: 87 chaparral model 187 Timing and Points Setting

You have a 1987 Mercruiser 165 3.7L 4 cylinder engine.
Go up to the adults only sticky at the top of this forum and you can download the OEM service manual (#8) for your engine. Has all the tuneup info.

 

[mkast]

Re: 87 chaparral model 187 Timing and Points Setting

that a full tune-up, with Cap, Rotor, points, condenser, and Coil is in order

Coil?, normally a coil isn't replaced during a tuneup.
Spark Plugs and plug wires are more prone to replacement.

 

[Virtual_Digit]

Re: 87 chaparral model 187 Timing and Points Setting

You have a 1987 Mercruiser 165 3.7L 4 cylinder engine.
Go up to the adults only sticky at the top of this forum and you can download the OEM service manual (#8) for your engine. Has all the tuneup info.

Thanks Don!!, Will i be giving a chance to download the manual after i purchase it? or do i have to wait for the manual to ship to me to get this information?

 

[Don S]

Re: 87 chaparral model 187 Timing and Points Setting

Thanks Don!!, Will i be giving a chance to download the manual after i purchase it? or do i have to wait for the manual to ship to me to get this information?

Didn't read the instruction in the manual link did you.............